PRACTICAL CHESS ENDGAME

*www.chessending.com*

09/11/2003

Editor: Brian Gosling

ALL RIGHTS RESERVED

Welcome to this active site. Each week I am going to present to you an endgame position for you to solve or to workout the best continuation. Computer analysis will also be considered. Some of these positions will come from actual historical games. Others will be composed endgame studies, but all the solutions will be relevant to the practical game. The new position will occur each SUNDAY and I will always be pleased to receive POSITIVE feedback about the positions and the analysis and I will try to acknowledge these where relevant.

Thanks to Antonio Senatore, Gerard O'Reilly, Henryk Kalafut and Alexander Voyna.
THIS WEEK

POSITION 308 

White to play and WIN

FORSYTH NOTATION:2k1r3/8/2p2P2/2p1p3/8/4p3/R3P3/7K w - - 0 1:

> > Cumulative competition
LAST WEEK, POSITION 307

Artur Mandler, (1891-1971).  

Czech Endgame Composer. A brilliant endgame composer and analyst and close friend to Richard Reti whose studies he collected and published in 1931. Author of Studie (Prague, 1970), a collection of his own studies, which has recently been translated into English (see below).

  Artur Mandler, 1925

White to play and WIN

 

  FORSYTH NOTATION:8/p2R4/p7/8/5K2/8/8/4k2n w - - 0 1:

The composer builds on an earlier study by Ludwig Amelung, (1842-1909) which is worth knowing because this position is winnable in an ending where the advantage of Rook vs Knight is usually insufficient to win. Happily for White the Black pawns do not complicate the winning process. White's winning idea is to keep the Knight and King in the corner until they are forced to take up a position which will lead to the loss of the Knight..

(If White was careless and allowed the Knight to escape to the centre edge of the board then with accurate play Black could draw. This result would only be possible if the Knight stayed close to the King; if separated it could be corralled and then captured.)

1.Re7+! ...

1.Kf3? Nf2 2.Re7+ Kf1 = a known draw RvN (the a-pawns do not effect this assessment) ;

1... Kf2

1...Kf1 2.Ke3 Kg2 3.Rg7+ Kf1 4.Rg5 a5 5.Rxa5 Kg2 6.Rg5+ Kf1 7.Rg6 a5 8.Rg4 a4 9.Rxa4 Kg2 10.Rg4+ Kh2 11.Kf3 Kh3 12.Rg1 Kh2 13.Rg8 Kh3 14.Rh8#;

2.Rh7 ...

2.Rc7 Ng3 3.Rc2+ Ne2+ 4.Ke4 Kf1! =;

2... Kg2

The Black King and Knight are forced to stay in the corner.

3.Rg7+ Kf2

3...Kf1 4.Ke3! a5 5.Rxa7 Kg2 6.Rg7+ Kf1 7.Rg4 a4 8.Rxa4 Ng3 (8...Kg2 9.Rg4+ Kh2 10.Kf3 Kh3 11.Rg1 Kh2 12.Rg8 Kh3 13.Rh8#) 9.Kf3 Ne2 10.Ra1+ Nc1 11.Rxc1#;

4.Rg5! ...

White is hoping to set up the winning Amelung position. For this to happen the Rook has to be on the fifth rank.

4... a5

5.Rh5 Kg2

6.Ke3 a4!

Black does not make it easy.

6.Rxa5? Nf2 7.Ra2 Kf1 8.Kf3 Nd1=;

6...Ng3? 7.Rg5! ( This is the so called Amelung's position. (ignoring the pawns) which leads to a win of the Knight and the game. 7... Kh2 8.Kf3 Nf1 9.Kf2 +-;

Amelung Position: Notice the spatial relationship between the pieces. The Knight is pinned by the Rook and there is only one square between them. The Kings are a Knight move away from each other. If we can hang our knowledge on such images (classical studies) then basic endgame theory becomes comprehensible.

7.Rg5+ Kf1

8.Rd5! ...

8.Kf3? Nf2 9.Rd5 Ke1=;

White having failed to set up the Amelung position on the file now tries along the rank.

8... Kg2

8...a3 9.Kf3 Ke1 10.Re5+ Kd2 11.Rc5 a2 12.Ra5 Kd3 13.Rxa2 wins. In defence the Knight must stay close to the King.

9.Rd2+ Kg3

10.Rd1! ...

10.Rd4? Nf2! 11.Rxa4 Ng4+ and Black has a drawn position;

10... Kg2

10...Kh2 11.Kf3 Ng3 12.Rd7 Nf5 13.Kf4 Nh4 14.Rh7 Kh3 15.Kg5 wins;

11.Kf4! Kh2

In the original composition Artur Mandler brought it to a swift close with 11.Nf2?! and after 12.Rd2!! yes, you have guessed it correctly, we have the winning Amelung position.

12.Rd2 Kh3

13.Ra2 ...

Black is in zugswang. After the pawn moves are over he will lose.

13... a6

14.Rxa4 Nf2

15.Kf3 ....

The Knight will now become separated from the King, corralled and then captured.

John Beasley has self-published a very nice translation of Artur Mandler's Studie (Prague, 1970) called:

Depth and Beauty: Chess Endgame Studies of Artur Mandler by John Beasley. Details can be found on the BCM website: www.bcmchess.co.uk

 Gens Una Sumus.
Jon Palmer wins in October.

> > Cumulative competition


  COMPETITIONS for 2003

1. Cumulative 2003 Prizes: 1st £100 or equivalent, 2nd £50, 3rd £30; 4th £20. (Total Prize Money=£200) Entries limited to 20 solvers. This event will run from 5/1/2003 to 22/12/2003 with a recess in July. Present rules apply but note the prizes will go to those participants who climb the ladder the greatest number of times during the year. The relative position of the solver's name on the ladder will decide the allocation of prizes.


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Troitzky
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